1
pointout
todirect someone's attention to (someone or something) by pointing
Hepointed his girlfriend out(to me) in the crowd
2
biogas
n.（名词）
a mixture ofmethane and carbon dioxide produced by bacterial degradation of organic matterand used as a fuel.
生物气：有机物质经细菌降解而产生的甲烷与二氧化碳混合物，用作燃料
3
backup
tomove into a position behind (a teammate) in order to assist on a play
4
anathema
n.（名词）
A vehementdenunciation; a curse:
强烈的谴责；诅咒：
5
incumbent
adj.（形容词）
Imposed as anobligation or a duty; obligatory:
有义务的：强加责任或任务的；有义务的：
It'sincumbenton you to warn them.
6
pour
v.（动词）poured,pour.ing,pours
v.tr.（及物动词）
poured money intothe project; poured out my inner thoughts.
把大笔钱投入项目中；倾吐我内心的想法
"Asthe selling season is at hand, lots of fresh orders will pour in
7
takethe lead
todo something as an example for others to follow
Americanfarmers took the lead by sending tons of grain to the drought-stricken areas.
8
perennial
adj.（形容词）
Lasting anindefinitely long time; enduring:
持久的：持续很长时间的；持久的：
Falsehoodhas a perennial spring.
9
glut
v.（动词）
v.tr.（及物动词）
To flood (a market)with an excess of goods so that supply exceeds demand.
使充斥：货物充斥（市场）以致于供大于求
Ifthere's a glut, you're impoverished for the year, especially if you rely ononly one or two commodities.
10
havoc
n.（名词）
Widespreaddestruction; devastation.
大范围的破坏；浩劫
Anunhappy marriage, Jon, can play such havoc with other lives besides one's own.
11
atfirst blush
whenyou first think about or see something
Atfirst blush it looks like any other car.
12
intermittent
adj.（形容词）
Stoppingand starting at intervals.
断断续续的：间隔停歇和启动
Inthe daytime intermittent rains freshened all the earth.
13
Hydroelectricity
Hydroelectricityis electricity produced from hydropower. In 2015 hydropower generated 16.6% ofthe world's total electricity and 70% of all renewable electricity,[1] and wasexpected to increase about 3.1% each year for the next 25 years.
Hydropoweris produced in 150 countries, with the Asia-Pacific region generating 33percent of global hydropower in 2013. China is the largest hydroelectricityproducer, with 920 TWh of production in 2013, representing 16.9 percent ofdomestic electricity use.
14
diesel
n.（名词）
A diesel engine.
柴油机
The diesel enginewas named after its inventor Rudolf Diesel.
15
shyaway
toavoid someone, or to be unwilling to do something, because you are nervous,afraid, or not confident
16
incipient
adj.（形容词）
Beginningto exist or appear:
起初的：开始存在或出现的：
Itwas now the season of incipient preparation for dinner.
17
precipitous
adj.（形容词）
Resembling aprecipice; extremely steep
险峻的：类似悬崖的；极其陡峭
18
takeaccount of
toconsider something when you are trying to make a decision
Punitivedamage awards take into account the pain and suffering caused to the victim.
19
nibble
v.（动词）
v.tr.（及物动词）
To eat with small,quick bites or in small morsels:
小口快速吃：快速小口吃或一点一点地吃：
Hesaw buffaloes dive beneath the floodwater to nibble grass.
20
dromedary
n.（名词）【复数】
Theone-humped domesticated camel(Camelus dromedarius),widely used as a beast of burden in northernAfrica and western Asia. Also calledArabian camel
单峰驼：一种单峰的驯养骆驼（单峰驼骆驼属），在北非和西亚广泛地用作载重动物也作Arabian camel